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arXiv · 2607.00593

QCD sum-rule determination of the axial-vector mixing angle in the \texorpdfstring{\(B_c(1P)\)}{Bc(1P)} sector

T. M. Aliev·S. Bilmis·M. Savci
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Abstract

We determine the mixing angle between the \(1^1P_1\) and \(1^3P_1\) axial-vector states in the \(B_c(1P)\) sector using QCD sum rules. The analysis gives \(\theta_{B_c(1P)}=(43.3\pm0.2)^\circ\), indicating sizable mixing between these two states. We also compare our result with theoretical studies available in the literature.

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T. M. Aliev, S. Bilmis, M. Savci. 2026-07-01. QCD sum-rule determination of the axial-vector mixing angle in the \texorpdfstring{\(B_c(1P)\)}{Bc(1P)} sector. https://arxiv.org/abs/2607.00593

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